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Xiaobian to share with you what is the use of PHP memory_get_usage(),memory_get_peak_usage(),getrusage() functions, I believe most people do not know how, so share this article for your reference, I hope you have a lot of harvest after reading this article, let's go to understand it!

memory_get_usage(),memory_get_peak_usage(),getrusage()

The memory_get_usage() function returns memory usage, the memory_get_peak_usage() function returns peak memory usage, and getrusage() returns CUP usage. These functions will give you useful information when debugging PHP code performance. Note, however, that Window is not valid in these functions.

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